Tag

The label is tied to the input by id, and the hint is announced with it via aria-describedby.

srcset lets the browser pick; sizes tells it how wide the image will actually be rendered.

Fixed number of goroutines draining a channel, with the group ensuring main waits for all of them.

Cancels the request and everything downstream of it after two seconds. The defer is not optional.

The stream closes itself when it leaves scope, whether the function returns normally or throws.

The allocation that nobody checks is the one that fails in production.

A record plus a switch pattern removes most of the ceremony this used to take.

Runs the downloads concurrently and collects them, with cancellation propagating to all of them.

Turning the feature on makes the compiler point at every place a null could slip through.

Placeholders rather than interpolation. This is the whole of SQL injection defence in PHP.

htmlspecialchars with the flags spelled out, because the defaults have changed between versions.

password_hash picks the algorithm and the salt. Never store anything a hash function can reverse.